AL092017NWS NATIONAL HURRICANE CENTER MIAMI FLROUTINE ADVISORY44320170830 10:00:00 PM CDT20170831 03:00:00 AM UTC2017083103001000 PM CDT Wed Aug 301504148400TROPICAL DEPRESSIONHARVEY31.7-92.331.7N92.3W35553099829.47N/AN/AN/ANNE OR 30 DEGREES9158ABOUT 30 MI...50 KM NNE OF ALEXANDRIA LOUISIANAABOUT 100 MI...160 KM SE OF SHREVEPORT LOUISIANA
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BULLETIN
Tropical Depression Harvey Advisory Number 43
NWS National Hurricane Center Miami FL AL092017
1000 PM CDT Wed Aug 30 2017
...FLOODING RAINS CONTINUE OVER EXTREME EASTERN TEXAS AND WESTERN
LOUISIANA...
...HEAVY RAINS EXPECTED TO SPREAD NORTHEASTWARD OVER THE MISSISSIPPI
AND TENNESSEE VALLEYS DURING THE NEXT DAY OR TWO...
SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...31.7N 92.3W
ABOUT 30 MI...50 KM NNE OF ALEXANDRIA LOUISIANA
ABOUT 100 MI...160 KM SE OF SHREVEPORT LOUISIANA
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...NNE OR 30 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
None
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
There are no coastal watches or warnings in effect.
Catastrophic and life-threatening flooding continues in southeastern
Texas and portions of southwestern Louisiana. Please see warnings
and other products issued by your local National Weather Service
office for additional information on this life-threatening
situation.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 1000 PM CDT (0300 UTC), the center of Tropical Depression Harvey
was located near latitude 31.7 North, longitude 92.3 West. The
depression is moving toward the north-northeast near 9 mph (15 km/h)
and this motion is expected to continue tonight. A turn toward the
northeast is expected Thursday or Thursday night. On the forecast
track, the center of Harvey should move through central Louisiana
tonight, then move through northeastern Louisiana and northwestern
Mississippi Thursday and Thursday night, and over the Tennessee
Valley region on Friday.
Maximum sustained winds are near 35 mph (55 km/h) with higher gusts.
Gradual weakening is expected over the next 48 hours.
The estimated minimum central pressure is 998 mb (29.47 inches).
HAZARDS AFFECTING LAND
----------------------
RAINFALL: Harvey is expected to produce additional rainfall
accumulations of 4 to 8 inches from southwestern Louisiana and the
adjacent border of eastern Texas northeastward into western
Tennessee and Kentucky through Friday with isolated amounts up to 12
inches. The threat of heavy rains has ended in the Houston/
Galveston area. However catastrophic and life-threatening flooding
will continue in and around Houston, Beaumont/Port Arthur,
and eastward into southwest Louisiana for the rest of the week. The
expected heavy rains spreading northeastward from Louisiana into
western Kentucky may also lead to flash flooding and increased river
and small stream flooding. DO NOT ATTEMPT TO TRAVEL IN THE AFFECTED
AREA IF YOU ARE IN A SAFE PLACE. DO NOT DRIVE INTO FLOODED
ROADWAYS. Please see warnings and products issued by your local
National Weather Service office for additional information on this
life-threatening situation.
Elsewhere, the outer bands of Harvey are expected to produce
additional rainfall amounts of 3 to 6 inches over portions of the
central and eastern Gulf States and 2 to 4 inches farther north into
parts of the Tennessee Valley, Ohio Valley and southern Mid Atlantic
through Saturday. These rains may lead to flooding concerns across
these areas.
A list of preliminary rainfall observations compiled by the NOAA
Weather Prediction Center can be found at:
www.wpc.ncep.noaa.gov/discussions/nfdscc1.html
STORM SURGE: Water levels along the northwestern and northern
Gulf coast should subside very slowly over the next day or two.
TORNADOES: Isolated tornadoes are possible tonight across parts of
Mississippi, southern Alabama, and southwest Georgia. Additional
tornadoes are possible on Thursday afternoon and evening across
northern portions of Mississippi, Alabama, Georgia, and into parts
of Tennessee.
NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane
Center on Harvey. Future information on this system can be found in
Public Advisories issued by the Weather Prediction Center beginning
at 4 AM CDT, under AWIPS header TCPAT4, WMO header WTNT34 KWNH, and
on the web at http://www.wpc.ncep.noaa.gov. These advisories will
also continue to be found on the National Hurricane Center website
at hurricanes.gov.
$$
Forecaster Brown
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